EP 1546916 B1 20200415 - METHOD AND SYSTEM FOR PROCESSING A SOUND FIELD REPRESENTATION
Title (en)
METHOD AND SYSTEM FOR PROCESSING A SOUND FIELD REPRESENTATION
Title (de)
VERFAHREN UND VORRICHTUNG ZUM VERARBEITEN EINER DARSTELLUNG EINES AKUSTISCHEN FELDES
Title (fr)
PROCEDE ET SYSTEME DE TRAITEMENT D'UNE REPRESENTATION D'UN CHAMP ACOUSTIQUE
Publication
Application
Priority
- FR 0302784 W 20030922
- FR 0211739 A 20020923
Abstract (en)
[origin: WO2004027642A2] The invention relates to a method of processing a sound field representation which can be used to provide a representation which has been modified by means of at least spatial processing. The inventive method comprises the following steps: the establishment (8) of an initial representation of the sound field and the establishment (10) of a representation which has been modified by filtering combinations corresponding to the aforementioned processing operation. The invention is characterised in that it also comprises a step (2) which consists in defining the processing operation and which comprises: a step (4) involving the establishment of a set of directivity functions, which is representative of the aforementioned processing and which takes the form of a set of coefficients corresponding to the spherical harmonic decomposition of said functions; and a step (6) in which the above-mentioned filtering combinations are determined from the decomposition so that another step (10) involving the application of the thus defined filtering combinations can be performed.
IPC 8 full level
G06F 17/14 (2006.01); H04S 1/00 (2006.01)
CPC (source: EP KR US)
G06F 17/14 (2013.01 - EP KR US); H04S 1/002 (2013.01 - EP US); H04S 2420/03 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004027642 A2 20040401; WO 2004027642 A3 20040805; AU 2003276362 A1 20040408; AU 2003276362 B2 20100401; CA 2499658 A1 20040401; CA 2499658 C 20120417; CN 100557600 C 20091104; CN 1723453 A 20060118; EP 1546916 A2 20050629; EP 1546916 B1 20200415; FR 2844894 A1 20040326; FR 2844894 B1 20041217; JP 2006500809 A 20060105; JP 4624790 B2 20110202; KR 101021895 B1 20110318; KR 20050074451 A 20050718; US 2006126852 A1 20060615; US 8014532 B2 20110906
DOCDB simple family (application)
FR 0302784 W 20030922; AU 2003276362 A 20030922; CA 2499658 A 20030922; CN 03824553 A 20030922; EP 03797357 A 20030922; FR 0211739 A 20020923; JP 2004537236 A 20030922; KR 20057004973 A 20030922; US 52876203 A 20030922